JP2011237624A - Liquid crystal display device - Google Patents

Liquid crystal display device Download PDF

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Publication number
JP2011237624A
JP2011237624A JP2010109249A JP2010109249A JP2011237624A JP 2011237624 A JP2011237624 A JP 2011237624A JP 2010109249 A JP2010109249 A JP 2010109249A JP 2010109249 A JP2010109249 A JP 2010109249A JP 2011237624 A JP2011237624 A JP 2011237624A
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Prior art keywords
liquid crystal
crystal display
display device
display panel
recess
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Makoto Hasegawa
誠 長谷川
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Panasonic Liquid Crystal Display Co Ltd
Japan Display Inc
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Panasonic Liquid Crystal Display Co Ltd
Hitachi Displays Ltd
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Priority to JP2010109249A priority Critical patent/JP2011237624A/en
Priority to US13/104,163 priority patent/US20110279748A1/en
Publication of JP2011237624A publication Critical patent/JP2011237624A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0093—Means for protecting the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal display device that can prevent damage to a liquid crystal display panel even the thickness thereof is reduced.SOLUTION: A liquid crystal display device comprises: a hole 26 penetrating a first face 22 and a second face 24; a resin frame 20 where a first recessed portion 38 is formed around the hole 26 on the first face 22 and a second recessed portion 42 is formed around the hole 26 on the second face 24; a liquid crystal display panel 10 fixed on the first face 22 of the resin frame 20; a light guide plate 30 fixed on the second face 24 of the resin frame 20; a flexible wiring board 18 connected to the liquid crystal display panel 10; and an electronic component 46 mounted on the flexible wiring board 18. The liquid crystal display panel 10 is arranged in a manner that edge portion thereof is positioned in a space above the first recessed portion 38. The flexible wiring board 18 is arranged to crookedly extend from a side of the first face 22 to a side of the second face 24. The electronic component 46 is stored in the second recessed portion 42.

Description

本発明は、液晶表示装置に関する。   The present invention relates to a liquid crystal display device.

樹脂フレームに液晶表示パネルの端部を貼り付けた構造の液晶表示装置が知られている（特許文献１参照）。近年、液晶表示パネルの厚みが薄くなっており、さらに、液晶表示装置の総厚も薄くなっている。   A liquid crystal display device having a structure in which an end of a liquid crystal display panel is attached to a resin frame is known (see Patent Document 1). In recent years, the thickness of liquid crystal display panels has been reduced, and the total thickness of liquid crystal display devices has also been reduced.

特開２００８−１７０７３９号公報JP 2008-170739

液晶表示パネルはその薄さから強度が低下しており、液晶表示装置はその総厚の薄さから曲がりやすくなっているので、液晶表示パネルの破損を防ぐことが難しくなってきている。   Since the strength of the liquid crystal display panel is reduced due to its thinness, and the liquid crystal display device is easily bent due to its thin thickness, it is difficult to prevent the liquid crystal display panel from being damaged.

本発明は、液晶表示パネルの破損を防止することができる液晶表示装置を提供することを目的とする。   An object of this invention is to provide the liquid crystal display device which can prevent the failure | damage of a liquid crystal display panel.

（１）本発明に係る液晶表示装置は、第１面及び第２面を貫通する穴を有し、前記第１面には前記穴の周囲に第１凹部が形成され、前記第２面には前記穴の周囲に第２凹部が形成された樹脂フレームと、前記樹脂フレームの前記第１面に固定された液晶表示パネルと、前記樹脂フレームの前記第２面に固定された導光板と、前記液晶表示パネルに接続されたフレキシブル配線基板と、前記フレキシブル配線基板に搭載された電子部品と、を有し、前記液晶表示パネルは、端部が前記第１凹部の上方に浮いた状態で位置するように配置され、前記フレキシブル配線基板は、屈曲して前記第１面側から前記第２面側に延びるように配置され、前記電子部品は前記第２凹部に収容されていることを特徴とする。本発明によれば、液晶表示パネルの端部が第１凹部の上方で浮いた状態で位置するので、液晶表示パネルが樹脂フレームに接触することを防止することができ、液晶表示パネルの破損を防止することができる。   (1) The liquid crystal display device according to the present invention has a hole penetrating the first surface and the second surface, the first surface is formed with a first recess around the hole, and the second surface Is a resin frame in which a second recess is formed around the hole, a liquid crystal display panel fixed to the first surface of the resin frame, a light guide plate fixed to the second surface of the resin frame, A flexible wiring board connected to the liquid crystal display panel; and an electronic component mounted on the flexible wiring board, wherein the liquid crystal display panel is positioned in a state where an end portion is floated above the first recess. The flexible wiring board is bent so as to extend from the first surface side to the second surface side, and the electronic component is housed in the second recess. To do. According to the present invention, since the end of the liquid crystal display panel is positioned in a state of floating above the first recess, the liquid crystal display panel can be prevented from coming into contact with the resin frame, and the liquid crystal display panel can be damaged. Can be prevented.

（２）（１）に記載された液晶表示装置において、前記第１面には前記第１凹部の外側に凸部が形成され、前記凸部の反対側に前記第２凹部が形成されていることを特徴としてもよい。   (2) In the liquid crystal display device described in (1), a convex portion is formed outside the first concave portion on the first surface, and the second concave portion is formed on the opposite side of the convex portion. This may be a feature.

（３）（１）又は（２）に記載された液晶表示装置において、前記第１凹部及び前記第２凹部は貫通していることを特徴としてもよい。   (3) In the liquid crystal display device described in (1) or (2), the first recess and the second recess may be penetrated.

本発明の実施形態に係る液晶表示装置を示す平面図である。It is a top view which shows the liquid crystal display device which concerns on embodiment of this invention. 図２は、図１に示す液晶表示装置のII−II線断面図である。FIG. 2 is a cross-sectional view of the liquid crystal display device shown in FIG. 1 taken along the line II-II. 図３は、図１に示す液晶表示装置のIII−III線断面図である。3 is a cross-sectional view taken along the line III-III of the liquid crystal display device shown in FIG. 本実施形態の効果を説明する図である。It is a figure explaining the effect of this embodiment. 本発明の実施形態の変形例を示す図である。It is a figure which shows the modification of embodiment of this invention.

以下、本発明の実施形態について、図面を参照して説明する。図１は、本発明の実施形態に係る液晶表示装置を示す平面図である。図２は、図１に示す液晶表示装置のII−II線断面図である。図３は、図１に示す液晶表示装置のIII−III線断面図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a liquid crystal display device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the liquid crystal display device shown in FIG. 1 taken along the line II-II. 3 is a cross-sectional view taken along the line III-III of the liquid crystal display device shown in FIG.

液晶表示装置は、液晶表示パネル１０を有する。液晶表示パネル１０は、ガラスなどからなる一対の基板１２，１４とこれらの間に挟まれた図示しない液晶を含み、一方の基板１２は他方の基板１４よりも長く形成されている。一対の基板１２，１４のそれぞれには偏光板１６が貼り付けられている。   The liquid crystal display device includes a liquid crystal display panel 10. The liquid crystal display panel 10 includes a pair of substrates 12 and 14 made of glass or the like and liquid crystal (not shown) sandwiched between them, and one substrate 12 is formed longer than the other substrate 14. A polarizing plate 16 is attached to each of the pair of substrates 12 and 14.

液晶表示パネル１０には、フレキシブル配線基板１８が接続されている。詳しくは、一方の基板１２にフレキシブル配線基板１８が電気的に接続されている。フレキシブル配線基板１８には電子部品４６が搭載されている。電子部品４６を液晶表示パネル１０と電気的に接続するために、フレキシブル配線基板１８は図示しない配線パターンを有する。   A flexible wiring board 18 is connected to the liquid crystal display panel 10. Specifically, the flexible wiring board 18 is electrically connected to one of the boards 12. An electronic component 46 is mounted on the flexible wiring board 18. In order to electrically connect the electronic component 46 to the liquid crystal display panel 10, the flexible wiring board 18 has a wiring pattern (not shown).

液晶表示装置は樹脂フレーム２０を有する。樹脂フレーム２０は、第１面２２及び第２面２４を有し、第１面２２及び第２面２４を貫通する穴２６を有する。液晶表示パネル１０は、その表示領域が樹脂フレーム２０の穴２６に対向するように配置されている。図２に示すように、偏光板１６の全体が穴２６の内側に位置していてもよい。液晶表示パネル１０は、樹脂フレーム２０の第１面２２に固定されている。詳しくは、一方の基板１２が第１面２２に両面テープ２８などの粘着材によって貼り付けられている。両面テープ２８は遮光性を有している。   The liquid crystal display device has a resin frame 20. The resin frame 20 has a first surface 22 and a second surface 24, and has a hole 26 that passes through the first surface 22 and the second surface 24. The liquid crystal display panel 10 is arranged so that its display area faces the hole 26 of the resin frame 20. As shown in FIG. 2, the entire polarizing plate 16 may be located inside the hole 26. The liquid crystal display panel 10 is fixed to the first surface 22 of the resin frame 20. Specifically, one substrate 12 is bonded to the first surface 22 with an adhesive material such as a double-sided tape 28. The double-sided tape 28 has a light shielding property.

液晶表示装置は、樹脂フレーム２０の第２面２４の側に配置された導光板３０を有する。導光板３０は液晶表示パネル１０と対向しており、樹脂フレーム２０の穴２６にも対向している。液晶表示パネル１０と導光板３０の間には、光学フィルム３２が配置されている。光学フィルム３２は穴２６の内側に配置されている。導光板３０の端面に対向するように、ＬＥＤ（Light Emitting Diode）３４などの光源が配置されている。導光板３０の、液晶表示パネル１０とは反対側の面には反射シート３６が配置されている。   The liquid crystal display device includes a light guide plate 30 disposed on the second surface 24 side of the resin frame 20. The light guide plate 30 faces the liquid crystal display panel 10 and also faces the hole 26 of the resin frame 20. An optical film 32 is disposed between the liquid crystal display panel 10 and the light guide plate 30. The optical film 32 is disposed inside the hole 26. A light source such as an LED (Light Emitting Diode) 34 is disposed so as to face the end face of the light guide plate 30. A reflection sheet 36 is disposed on the surface of the light guide plate 30 opposite to the liquid crystal display panel 10.

樹脂フレーム２０の第１面２２には、穴２６の周囲に第１凹部３８（又は溝）が形成されている。第１面２２には第１凹部３８の外側に凸部４０が形成されている。液晶表示パネル１０は、端部が第１凹部３８の上方に浮いた状態で位置している。図２に示すように、液晶表示パネル１０の樹脂フレーム２０に固定された基板１２の端部が、第１凹部３８の上方に突出している。   A first recess 38 (or groove) is formed around the hole 26 in the first surface 22 of the resin frame 20. A convex portion 40 is formed on the first surface 22 outside the first concave portion 38. The liquid crystal display panel 10 is positioned with its end portion floating above the first recess 38. As shown in FIG. 2, the end of the substrate 12 fixed to the resin frame 20 of the liquid crystal display panel 10 protrudes above the first recess 38.

一方、樹脂フレーム２０の第２面２４には、穴２６の周囲に第２凹部４２が形成されている。第１面２２の凸部４０の反対側に第２凹部４２が形成されている。フレキシブル配線基板１８は、屈曲して第１面２２側から第２面２４側に延びるように配置されている。樹脂フレーム２０の第２面２４とフレキシブル配線基板１８は両面テープ４４などの粘着材で固定されている。そして、電子部品４６は第２凹部４２に収容されている。こうすることで、電子部品４６の厚みによって液晶表示装置の厚みが増加することを避けることができる。   On the other hand, a second recess 42 is formed around the hole 26 on the second surface 24 of the resin frame 20. A second recess 42 is formed on the first surface 22 opposite to the protrusion 40. The flexible wiring board 18 is arranged to bend and extend from the first surface 22 side to the second surface 24 side. The second surface 24 of the resin frame 20 and the flexible wiring board 18 are fixed with an adhesive material such as a double-sided tape 44. The electronic component 46 is accommodated in the second recess 42. By doing so, it is possible to avoid an increase in the thickness of the liquid crystal display device due to the thickness of the electronic component 46.

図４は、本実施形態の効果を説明する図である。本実施形態によれば、液晶表示パネル１０の端部が第１凹部３８の上方で浮いた状態で位置するので、液晶表示パネル１０が樹脂フレーム２０に接触しにくくなっている。そのため、液晶表示パネル１０を薄くしてもその破損を防止することができる。また、薄型化の要求から、樹脂フレーム２０が薄く形成されて曲がりやすくなっていても、樹脂フレーム２０が液晶表示パネル１０の端部に接触することを、第１凹部３８によって、避けることができる。   FIG. 4 is a diagram for explaining the effect of the present embodiment. According to the present embodiment, since the end portion of the liquid crystal display panel 10 is positioned above the first recess 38, the liquid crystal display panel 10 is unlikely to contact the resin frame 20. Therefore, even if the liquid crystal display panel 10 is thinned, the breakage can be prevented. Further, due to the demand for thinning, even if the resin frame 20 is thin and easily bent, the first recess 38 can avoid the resin frame 20 from coming into contact with the end of the liquid crystal display panel 10. .

図５は、本発明の実施形態の変形例を示す図である。この例では、第１凹部１３８及び第２凹部１４２は貫通している点で、上記実施形態とは異なる。第１凹部１３８と第２凹部１４２は、一部同士のみが重複しているが、相互に重複しない部分がある。本発明は、このような例も含んでいる。   FIG. 5 is a diagram showing a modification of the embodiment of the present invention. In this example, the first recess 138 and the second recess 142 are different from the above embodiment in that they penetrate therethrough. The first recess 138 and the second recess 142 partially overlap each other, but there are portions that do not overlap each other. The present invention includes such an example.

本発明は、上述した実施形態に限定されるものではなく種々の変形が可能である。例えば、実施形態で説明した構成は、実質的に同一の構成、同一の作用効果を奏する構成又は同一の目的を達成することができる構成で置き換えることができる。   The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the configuration described in the embodiment can be replaced with substantially the same configuration, a configuration that exhibits the same operational effects, or a configuration that can achieve the same purpose.

１０ 液晶表示パネル、１２ 基板、１４ 基板、１６ 偏光板、１８ フレキシブル配線基板、２０ 樹脂フレーム、２２ 第１面、２４ 第２面、２６ 穴、２８ 両面テープ、３０ 導光板、３２ 光学フィルム、３４ ＬＥＤ、３６ 反射シート、３８ 第１凹部、４０ 凸部、４２ 第２凹部、４４ 両面テープ、４６ 電子部品、１３８ 第１凹部、１４２ 第２凹部。   DESCRIPTION OF SYMBOLS 10 Liquid crystal display panel, 12 board | substrate, 14 board | substrate, 16 polarizing plate, 18 flexible wiring board, 20 resin frame, 22 1st surface, 24 2nd surface, 26 holes, 28 double-sided tape, 30 light guide plate, 32 optical film, 34 LED, 36 Reflective sheet, 38 1st recessed part, 40 Convex part, 42 2nd recessed part, 44 Double-sided tape, 46 Electronic component, 138 1st recessed part, 142 2nd recessed part.

Claims (3)

第１面及び第２面を貫通する穴を有し、前記第１面には前記穴の周囲に第１凹部が形成され、前記第２面には前記穴の周囲に第２凹部が形成された樹脂フレームと、
前記樹脂フレームの前記第１面に固定された液晶表示パネルと、
前記樹脂フレームの前記第２面に固定された導光板と、
前記液晶表示パネルに接続されたフレキシブル配線基板と、
前記フレキシブル配線基板に搭載された電子部品と、
を有し、
前記液晶表示パネルは、端部が前記第１凹部の上方に浮いた状態で位置するように配置され、
前記フレキシブル配線基板は、屈曲して前記第１面側から前記第２面側に延びるように配置され、
前記電子部品は前記第２凹部に収容されていることを特徴とする液晶表示装置。 The first surface has a hole penetrating the second surface, the first surface has a first recess formed around the hole, and the second surface has a second recess formed around the hole. Resin frame,
A liquid crystal display panel fixed to the first surface of the resin frame;
A light guide plate fixed to the second surface of the resin frame;
A flexible wiring board connected to the liquid crystal display panel;
Electronic components mounted on the flexible wiring board;
Have
The liquid crystal display panel is disposed so that an end portion thereof is floated above the first recess,
The flexible wiring board is arranged to bend and extend from the first surface side to the second surface side,
The liquid crystal display device, wherein the electronic component is accommodated in the second recess. 請求項１に記載された液晶表示装置において、
前記第１面には前記第１凹部の外側に凸部が形成され、
前記凸部の反対側に前記第２凹部が形成されていることを特徴とする液晶表示装置。 The liquid crystal display device according to claim 1,
A convex portion is formed on the first surface outside the first concave portion,
The liquid crystal display device, wherein the second concave portion is formed on the opposite side of the convex portion. 請求項１又は２に記載された液晶表示装置において、
前記第１凹部及び前記第２凹部は貫通していることを特徴とする液晶表示装置。 The liquid crystal display device according to claim 1 or 2,
The liquid crystal display device, wherein the first recess and the second recess penetrate.
JP2010109249A 2010-05-11 2010-05-11 Liquid crystal display device Pending JP2011237624A (en)

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TWI485482B (en) * 2012-09-13 2015-05-21 Au Optronics Corp Display module having support structure for display panel
US10241357B2 (en) 2014-12-29 2019-03-26 Lg Display Co., Ltd. Mould frame and liquid crystal display module having thereof
CN105223732B (en) * 2015-10-23 2018-03-16 京东方光科技有限公司 Backlight and display device
CN105842775A (en) * 2016-04-25 2016-08-10 深圳市华星光电技术有限公司 Light guide plate, backlight module and display device
CN107561630B (en) * 2017-09-15 2020-07-24 海信视像科技股份有限公司 Backlight module and display device

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